Theogeography is the emerging science of analyzing the distribution of factors such as natural disasters, socio-economic status, IQ, award recipients, divorce rate, crime rate, longevity, health, relative happiness, etc, based on the ratio of specific beliefs.
Since we know for a fact that Christians can ask anything they want and they will get it (Luke 11:9-10). Since Jesus was the Son of God and God himself as well (according to the Trinity, all 3 are the same), he did not lie and had the power to make such claim. You can them safely expect that areas with a high concentration of Christian would show extremely low crime rate, divorce rate, and unemployment rate. They would show very few hospital as they would not need them (they can simply asked to be healed). They would also very little pollution as they would not need cars or buses — they can ask to fly or be teleported instead, which does not pollute.
The HCDA (high Christian density areas) would show no natural disasters such as earthquakes, flood, tornadoes, hurricanes or volcanoes. They would show a abnormally high rate of favorable chance-based winnings (lottery, casino, bingo, etc) and very high concentration of Noble laureates, Grammy, Oscar and other prizes.
You can also expect areas that are not less populated by Christian believers such a Norway, Sweden, China and Japan to have very low IQ, economic success, literacy rate and very high mortality rate, divorce rate, crime rates, be hit daily by natural disasters and rarely win anything.